COMPOSITES SCIENCE AND ENGINEERING ›› 2021, Vol. 0 ›› Issue (7): 22-27.DOI: 10.19936/j.cnki.2096-8000.20210728.004

• BASIC STUDY • Previous Articles     Next Articles

Research on the post-buckling bearing capacity of T-type composite stiffened panel

CUI Yong-jiang, WANG Bin-tuan, ZHAO Zhan-wen   

  1. The First Aircraft Institute, Aviation Industry Corporation of China, Xi'an 710089, China
  • Received:2020-11-02 Online:2021-07-28 Published:2021-08-04

Abstract: In order to study the post-buckling bearing capacity of T-type composite stiffened panel under compression load, calculation of engineering algorithm, finite element method and compression test are used for composite stiffened panel. The buckling load and failure load, load-displacement curve and damage evolution of composite stiffened panel are obtained. By comparing the two methods and test results, some conclusions can be obtained. There is a strong post-buckling bearing capacity after buckling. Compared with the finite element method, the error of engineering algorithm is larger. The quasi-static method can effectively simulate the buckling and post-buckling behavior of stiffened panel, but the calculation cost is relatively large.

Key words: composite materials, stiffened siding, finite element, post-buckling, breaking load

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